Patent US3004559A successfully refreshed from Google Patents.
US3004559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pancake air tube and method of making same
Assignee: Individual
•
Filing: 1958-03-17
•
Granted: 1961-10-17
•
Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles P Warman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:27
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/04; F16D25/042; F16D25/044
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2762737A
Cited
US2023135A
Cited
US2007677A
Cited
US2076071A
Cited
US2251444A
Cited
US2431937A
Cited
US2612909A
Cited
US2666007A
Cited
US2563673A
Cited
US2688983A
Cited
US2839440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |